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pmkrew · 01-21-2011, 10:51 PM

The TPI from the factory was designed for emissions compatability. If memory serves me the 350 tpi's had larger runners than the 305's did. I would find a 350 TPI off of a Vette (verify verify verify) if you can and I think you will get the flow you're looking for.
I have thought several times about using the whole topend off of a early 90's Vette with the roller cam and aluminum 58cc cylinder heads on a 283, I think it would be a screamer, over active brain sometimes I think...

01-21-2011, 10:51 PM	#5
pmkrew Registered User Join Date: Sep 2009 Location: Marietta, Ga Posts: 115	Re: Chevy Tuned Port Injection on a 283 The TPI from the factory was designed for emissions compatability. If memory serves me the 350 tpi's had larger runners than the 305's did. I would find a 350 TPI off of a Vette (verify verify verify) if you can and I think you will get the flow you're looking for. I have thought several times about using the whole topend off of a early 90's Vette with the roller cam and aluminum 58cc cylinder heads on a 283, I think it would be a screamer, over active brain sometimes I think...